Ventilator.



PATENTED DEC. 2.9, 1903.

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N0 MODEL.

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i Patented December 29, 1903.

PATENT OFFICE.

WALTER J. scIIUMA'CHEa, oF CHICAGO, ILLINOIS.

VENTILATOR.

brECIFICATION forming part of Letters Patent N o. 748,315, dated December 29, 1903.

Application iiled .Tune 5, 1903. Serial No.. 160,193. (No model.)

To all whom, it may concern:

Be it known that I, WALTER J. SCHU- MACHER, a citizen ofthe United States, residing at Chicago,in the county of Cook and State of Illinois,have invented anew and useful Improvcmentin Ventilators, of which the following is a specification. j

My invention relates to an improvement in ventilators of the shutter-Slat type, in which a series of mutually-overlapping pivotal slats are connected in a frame to adapt them to be opened for ventilation and closed for shutting out air; and it relates more particularly to an improvement in the means for operating the shutter-slats and locking them in their open and closed conditions, my primary object beingto providea novel and comparatively'- broken perspective view ofthe shutter-operating mechanism.

A is the frame of the ventilator, which I have primarily devised for use on railwaycars for shipping live stock, though it is also intended for use on ice-boxes and in other situations. In the application to a stock-car the frame A will form that portion of the side of the car which extends between an end thereof and the door between its ends, and four of the ventilators will be provided on the car, two on each side, to form its sides. On the opposite end bars of the frame are secured in vertical series bearings a' a' for trunnions ct, projecting from the ends of slats A' above their longitudinal centers, whereby the slats are pivotally' supported in the frame to extend parallel with its side bars in In utu ally-` overlapping relation.

B is a bearing-bar rigidly fastened at its ends to the side bars of the frame to extend transversely across the slats, from which it is sufficiently spaced to permit them to open.

C is the Lslat-connecting rod, shown to be formed oftwosemicylindricalsectionsbandb', fastened lengthwise together and forming transverse journal-bearings c at intervals be tween them into each of which extends a journal-pin c, projecting from a bracket c2 on each Slat. Thus the slats are pivotally con uected together to adapt them to be sim ultaneously opened or closed in the manner of shutters by moving the rod C longitudinally. For actuating the slats I provide a lever D, pivotally supported at a boss d on one end upon a journal e in a bearing f, projecting outward from the bearing-bar B, the journal e carrying on one end a head E, shown in its preferred form of a segment having a longitudinally slotted outer end g, through which the operating-lever extends to engage with it at its opposite extremities by throwing the lever. A link F pivotally connects the head E with the rod C at a bearing h thereon. Between its ends the lever D is provided at an enlargement k with an eye 'i to register at each end of its throw with an eye i' in a lug la' in proper position on the bar B and permit the lever to be locked by a car-seal, a pin and cotter, or the like by passing the locking medium through the coincident eyes z' t'.

To describe the operation of my improvement with reference to a stock-car when it is desired to regulate the temperature of the car or to maintain the ventilator open during the moderate or .warm season, the lever D is thrown in the directionto abut against theeud of the head g in its path and turn in attaining the end ot' its throw,the head E on its journal,thereby causing the link F to draw the rod C,with the eect of turning the slats on their trunnions into relatively parallel horizontal positions, wherein they extend ilatwise one over the other, and the lever is locked at that end of its throw, rand when closure of the ventilator is desired for permanency during the cold season or temporarily the lever is thrown in the opposite direction to engage and turn the segment on its bearing,with the eect on the link of causing it to move the rod C in the direction to produce the necessary overlapping relation of the slats. The

journaled connection between the slats and lever aiorded by the slotted segment E provides sufficient lost motion to the lever to adapt it to be turned through an arc of sufficient length foreach throw to bring it in each of its two positions for locking parallel, or approximately parallel, with the side of the ventilator, whereby its outward projection is avoided to keep it out of the way.

What I claim as new, and desire to secure by Letters Patent, is-

l. The combination with a ventilator-frame having slats jonrnaled therein to mutually overlap one another by their closure and a rod at which the slats are pivotally connected together, of means for actuating the slats to open and close them, comprising a bearing, a head journaled on said bearing and linked to said rod,and an operating-lever having a lostmotion connection with said head, substantially as and for the purpose set forth.

2. The combination with a ventilator-frame having slats journaled therein to mutually overlap one another by their closure and a rod at which the slats are pivotally connected together, of means for actuating the slats to open and close them, comprising a bearing, a head jonrnaled on said bearing and linked to said rod, and an operating-lever having a lostmotion connection with said head, and means for locking said lever at the ends of its throw, substantially as and for the purpose set forth.

3. The combination with a ventilator-frame having slats journaled therein to mutually overlap one another by their closure, and a rod at which the slats are pivotally connected together, of means for actuating the slats to open and close them, comprising a bearingbar extending across the slats,a slotted head journaled on said bar, a link connecting said head and rod, and an operating -lever fulcrumed on said bar and extending through the slot of said head, substantially as and for the purpose set forth.

4. The combination with a Ventilator-frame having slats journaled therein to mutually overlap one another by their closure and a rod at which the slats are pivotally connected together, of means for actuating the slats to open and close them, comprising a bearingbar extending across the slats, a slotted headV journaled on said bar, a link connecting said head and rod, and an operating-lever fulcrumed on the journal of said head and eX- tending through the slot lrhereof, and means for locking said lever at the opposite ends of its throw, substantially as and for the purpose set forth.

5. In combination, a ventilator-frame having slats journaled therein to mutually overlap one another by their closure, and carrying brackets provided with pins, a rod crossing said slats and pivotally connected therewith at said pins, a bar extending from the side members ofthe frame across the slats and provided with a journal-bearing, a segmental slotted head carrying a journal confined in said bearing, a link connecting said'head and rod, an operating-lever fulcrumed on said journal and extending through the slot of said head, and having an eye to receive a locking medium, and lugs on said bar at the opposite ends of the throw of the lever, having eyes to receive said locking medium when the lever-eye registers therewith, substantially as and for the purpose set forth.

WALTER J. SCHUMACHER.

In presence of- WALTER N. WINBERG, L. HEISLAR. 

